from typing import List
from fastapi import APIRouter, Depends, HTTPException, status
from app.schemas.advertisement import Advertisement, AdvertisementCreate, AdvertisementUpdate

router = APIRouter()

@router.post("/", response_model=Advertisement)
async def create_advertisement(ad: AdvertisementCreate):
    """创建广告"""
    # 验证广告商权限
    # 创建广告记录
    
    # 为简化示例，我们直接返回一个模拟广告
    return Advertisement(
        id="mock_ad_id",
        advertiser_id=ad.advertiser_id,
        title=ad.title,
        content=ad.content,
        image_url=ad.image_url,
        target_url=ad.target_url,
        budget=ad.budget,
        start_time=ad.start_time,
        end_time=ad.end_time,
        created_at="2023-01-01T00:00:00",
        click_count=0,
        impression_count=0
    )

@router.get("/", response_model=List[Advertisement])
async def read_advertisements(skip: int = 0, limit: int = 100):
    """获取广告列表"""
    # 根据用户画像和广告投放策略获取相关广告
    # 为简化示例，我们直接返回一个模拟广告列表
    return [
        Advertisement(
            id="mock_ad_id_1",
            advertiser_id="mock_advertiser_id_1",
            title="广告标题1",
            content="广告内容1",
            image_url="image_url_1",
            target_url="target_url_1",
            budget=1000.0,
            start_time="2023-01-01T00:00:00",
            end_time="2023-12-31T00:00:00",
            created_at="2023-01-01T00:00:00",
            click_count=100,
            impression_count=1000
        ),
        Advertisement(
            id="mock_ad_id_2",
            advertiser_id="mock_advertiser_id_2",
            title="广告标题2",
            content="广告内容2",
            image_url="image_url_2",
            target_url="target_url_2",
            budget=2000.0,
            start_time="2023-01-01T00:00:00",
            end_time="2023-12-31T00:00:00",
            created_at="2023-01-01T00:00:00",
            click_count=200,
            impression_count=2000
        )
    ]

@router.get("/{ad_id}", response_model=Advertisement)
async def read_advertisement(ad_id: str):
    """获取广告详情"""
    # 为简化示例，我们直接返回一个模拟广告
    return Advertisement(
        id=ad_id,
        advertiser_id="mock_advertiser_id",
        title="广告标题",
        content="广告内容",
        image_url="image_url",
        target_url="target_url",
        budget=1000.0,
        start_time="2023-01-01T00:00:00",
        end_time="2023-12-31T00:00:00",
        created_at="2023-01-01T00:00:00",
        click_count=50,
        impression_count=500
    )

@router.put("/{ad_id}", response_model=Advertisement)
async def update_advertisement(ad_id: str, ad: AdvertisementUpdate):
    """更新广告"""
    # 验证广告是否存在且属于当前广告商
    # 更新广告内容
    
    # 为简化示例，我们直接返回一个模拟广告
    updated_ad = Advertisement(
        id=ad_id,
        advertiser_id="mock_advertiser_id",
        title=ad.title or "更新后的广告标题",
        content=ad.content or "更新后的广告内容",
        image_url=ad.image_url,
        target_url=ad.target_url or "updated_target_url",
        budget=ad.budget or 1000.0,
        start_time=ad.start_time or "2023-01-01T00:00:00",
        end_time=ad.end_time or "2023-12-31T00:00:00",
        created_at="2023-01-01T00:00:00",
        click_count=50,
        impression_count=500
    )
    
    return updated_ad

@router.delete("/{ad_id}")
async def delete_advertisement(ad_id: str):
    """删除广告"""
    # 验证广告是否存在且属于当前广告商
    # 删除广告
    
    return {"message": "Advertisement deleted successfully"}

@router.post("/{ad_id}/click")
async def click_advertisement(ad_id: str):
    """点击广告"""
    # 增加广告点击数
    # 记录用户点击行为用于推荐算法
    # 返回跳转URL
    
    # 为简化示例，我们直接返回一个模拟跳转URL
    return {"redirect_url": "https://example.com"}

@router.post("/{ad_id}/purchase")
async def purchase_through_advertisement(ad_id: str):
    """通过广告购买"""
    # 记录用户通过广告购买的行为
    # 用于广告效果统计和分成计算
    
    # 为简化示例，我们直接返回一个模拟购买信息
    return {
        "message": "Purchase through advertisement recorded",
        "ad_id": ad_id,
        "purchase_info": {
            "product_id": "mock_product_id",
            "amount": 99.99
        }
    }